The main smoke unit has stopped working. I am getting the 3 flashes. The whistle smoke works fine. Here's what I have done:
--9 volt battery to main smoke fan--spins freely
--Swapped in a new smoke unit--still gets 3 flashes
--Switched whistle and main smoke wiring on the RCMC main board--main unit works fine, whistle smoke now gives 3 flashes
From the above I think I can deduce that the smoke unit is not the problem, the wiring is OK, so I believe it is the RCMC main board. Anything to test other than swapping it out?
Mike
